"external iliac vein" の定義と意味

What is "external iliac vein"?

The external iliac vein is a paired blood vessel that forms part of the venous system in the human body. It originates in the groin region and travels upward along the outer side of the pelvic bones, receiving blood from the lower limbs and pelvic organs. The external iliac veins eventually join with the internal iliac veins to form the common iliac veins. There are two external iliac veins, one on each side of the body, ensuring efficient blood drainage from both lower limbs.